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Hi Kevin, We run the following based on Bb 9.1 SP5 - 2x App (4vCPU/8GB) 1x Content/Snapshot 1x DB (4vCPU/10GB - Oracle 10g R2) All run RHEL v5.6 x64 on ESX 4.0 u2 sat behind a pair of virtual Zeus Traffic Manager appliances. We don’t see any performance issues, that I'm aware of anyway. If you haven’t already, I'd suggest you fire your bb-config.properties file at tier 2 support as well as looking at the recommended settings in the base administration manual. I had some really helpful discussions with Andy Hulme during our initial configuration in terms of sizing our java heap and other JVM settings. As well as also sizing our environment in general to cope with the number of active users. This *could* be where your performance issues reside. Cheers, Ceri -----Original Message----- From: Blackboard/Courseinfo userslist [mailto:[log in to unmask]] On Behalf Of Andrew Raistrick Sent: 18 October 2011 10:31 To: [log in to unmask] Subject: Re: VMWare + poor performance? Hi Kevin, We are running in a load balanced VMWare environment. We have 3 application servers on Windows Server 2008, 1 Collab Server, a MS SQL 2008 Database and shared content areas. All of these environments are on VMWare with 8GB memory each The load-balancer is a Citrix Netscaler We have so far encounter no user performance issues other than with Learning Objects which is not related to our set up. We support about 27K students over 4.5 modules We did initially have a problem with the performance of some of the module imports, but this was down to the amount of memory that was allocated to Java. The Blackboard default is 0.5 GB. We upped that to 4GB and it helped a lot. How does that compare with your set up? Andy -----Original Message----- From: Blackboard/Courseinfo userslist [mailto:[log in to unmask]] On Behalf Of Brace, Kevin Sent: 18 October 2011 09:21 To: [log in to unmask] Subject: VMWare + poor performance? Any advice for our technical support dep't? Context: At our institution, we are setup to run Blackboard 9.1 SP3 on vmware. Since the start of term, we have experienced (poor) performance issues. I would be grateful if you could let me know whether you are running the same specs and whether you have experienced similar performance issues? Regards. Kevin Brace. T: 0121 204 4230 Blackboard 9.1 now available: Aston now has Blackboard 9.1 for student and staff access for the 2011/12 academic year onwards. Important content rollover information can be found on the Aston University TLC website. Please be aware that the current VLE, Blackboard 8, continues to be available for staff and students. Details and booking of upcoming Blackboard course building sessions are available via the Staff and Graduate Development web page. *************************************************************************** --- This transmission is confidential and may be legally privileged. If you receive it in error, please notify us immediately by e-mail and remove it from your system. If the content of this e-mail does not relate to the business of the University of Huddersfield, then we do not endorse it and will accept no liability.